• 제목/요약/키워드: ${13}^C-NMR$ assignments of 6-hydroxykynurenic acid

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노란은행잎의 성분분석 (Phytochemical Analysis of Ginkgo biloba Yellow Leaves)

  • 강삼식;고영민;김주선;이명환;이동선
    • 생약학회지
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    • 제26권1호
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    • pp.23-26
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    • 1995
  • 6-Hydroxykynurenic acid and ginkgolide B together with flavonol glycosides and biflavonoids were isolated from the yellow leaves of Ginkgo biloba and identified by means of spectroscopic methods. The correctness of $H{\"{o}}lzl's$ ${13}^C-NMR$ assignments for 6-hydroxykynurenic acid was confirmed by HMQC and HMBC techniques. Based on our present findings, it may be considered that the yellow Ginkgo leaves may contribute to be a source of high medicinal values.

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